Ouriku Reigen is the main protagonist of the anime series 'Reikenzan: Hoshikuzu-tachi no Utage.' Known for his exceptional intelligence, wit, and unorthodox problem-solving skills, he stands out among his peers in the spiritual cultivation world. Ouriku joins the Reigen clan and embarks on a journey to become an immortal, facing various trials and challenges. His role as an underdog with a mysterious past brings humor, intrigue, and cleverness to the series, making him a unique and memorable character.